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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_ISURFACE_H
#define ANDROID_ISURFACE_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <binder/IInterface.h>
#include <utils/RefBase.h>
#include <ui/PixelFormat.h>
#include <hardware/hardware.h>
#include <hardware/gralloc.h>
namespace android {
typedef int32_t SurfaceID;
class IMemoryHeap;
class OverlayRef;
class SurfaceBuffer;
class ISurface : public IInterface
{
protected:
enum {
REGISTER_BUFFERS = IBinder::FIRST_CALL_TRANSACTION,
UNREGISTER_BUFFERS,
POST_BUFFER, // one-way transaction
CREATE_OVERLAY,
REQUEST_BUFFER,
};
public:
DECLARE_META_INTERFACE(Surface);
virtual sp<SurfaceBuffer> requestBuffer(int bufferIdx, int usage) = 0;
class BufferHeap {
public:
enum {
/* rotate source image 90 degrees */
ROT_90 = HAL_TRANSFORM_ROT_90,
};
BufferHeap();
BufferHeap(uint32_t w, uint32_t h,
int32_t hor_stride, int32_t ver_stride,
PixelFormat format, const sp<IMemoryHeap>& heap);
BufferHeap(uint32_t w, uint32_t h,
int32_t hor_stride, int32_t ver_stride,
PixelFormat format, uint32_t transform, uint32_t flags,
const sp<IMemoryHeap>& heap);
~BufferHeap();
uint32_t w;
uint32_t h;
int32_t hor_stride;
int32_t ver_stride;
PixelFormat format;
uint32_t transform;
uint32_t flags;
sp<IMemoryHeap> heap;
};
virtual status_t registerBuffers(const BufferHeap& buffers) = 0;
virtual void postBuffer(ssize_t offset) = 0; // one-way
virtual void unregisterBuffers() = 0;
virtual sp<OverlayRef> createOverlay(
uint32_t w, uint32_t h, int32_t format) = 0;
};
// ----------------------------------------------------------------------------
class BnSurface : public BnInterface<ISurface>
{
public:
virtual status_t onTransact( uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_ISURFACE_H
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